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Thread: "Serious errors were found while checking the disk for /" after upgrading to 14.04

  1. #1
    Join Date
    Apr 2014
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    2

    "Serious errors were found while checking the disk for /" after upgrading to 14.04

    Yesterday I attempted to upgrade my Ubuntu 13.10 to 14.04. Everything went okay, up until the point I had to reboot to make the update work.

    After that, I cannot boot into Ubuntu due to this error. It says something like "I to ignore, S to skip and M for manual recovery." If I ignore it, then another message pops up saying "The disk drive for /tmp is not ready yet or not present". If I skip that, then yet another message comes up saying "An error occurred while mounting /". Once again, if I skip that, I get stuck on a black screen with a frozen white cursor on the top left of the screen and nothing written on it. I can't type anything whatsoever.

    On the other hand, if I choose M on the first message (or the other 2, it doesn't really seem to matter), it drops me on a "maintenance root shell," with a message saying "Root filesystem check failed." I have no clue as to what to do there, I've searched all over the internet, but nothing so far has helped. So far I've tried:

    - fsck /dev/sda(1, 2, 3)

    Output is:
    Code:
    fsck from util-linux 2.20.1
    fsck: fsck.ntfs not found
    fsck: error 2 while executing fsck.ntfs for /dev/sda(1, 2, 3)
    - ntfsfix /dev/sda(1, 2, 3)

    Output is, for 1 and 2:
    Code:
    Mounting volume... OK
    Processing of $MFT and $MFTMirr completed sucessfully,
    Checking the alternate boot sector... OK
    NTFS volume version is 3.1
    NTFS partition /dev/sda(1, 2) was processed sucessfully.
    And for 3:
    Code:
    Refusing to operate on read-write mounted device on /dev/sda3
    - I can't install any other boot repair program because apt-get doesn't work. Output for everything is:
    Code:
    W: Not using locking for read only lock file /var/lib/dpkg/lock
    E: Unable to write to /var/cache/apt/
    E: The package lists or status file could not be parsed or opened.
    Content for my /etc/fstab is:
    Code:
    # UNCONFIGURED FSTAB FOR BASE SYSTEM
    /host/ubuntu/disks/swap.disk    none    swap    sw    0    0
    I've had Ubuntu since 12.10, installed with the Windows installer for 64-bit Windows 7. Upgrades for 13.04 and 13.10 worked wonderfully, yet this one is being a huge headache.

    Any help would be greatly appreciated. Thanks in advance.

    EDIT: Oh yeah, I also upgraded to 14.04 when a pop-up message asked me if I wanted to. I didn't do any crazy command line manipulation, all I did was click "Confirm."
    Last edited by Vitor_Coimbra; April 21st, 2014 at 12:22 AM.

  2. #2
    Join Date
    Apr 2014
    Beans
    2

    Re: "Serious errors were found while checking the disk for /" after upgrading to 14.0

    To anybody who wants to at least save their data, I was able to get into Ubuntu by holding the Shift key during boot. After choosing Advanced Options, I chose an older kernel version (3.11) and was able to access my things.

    My stuff is now safe in my flash drive in case this is never solved or the only solution is reinstalling.

  3. #3
    Join Date
    Apr 2014
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    1

    Re: "Serious errors were found while checking the disk for /" after upgrading to 14.0

    Same issue found here. I am wandering if this is because of install from windows? And later, I try to re-install from wubi after wipe out, it still shows same error.

  4. #4
    Join Date
    Aug 2013
    Beans
    56
    Distro
    Xubuntu 14.04 Trusty Tahr

    Re: "Serious errors were found while checking the disk for /" after upgrading to 14.0

    Quote Originally Posted by rainymountain View Post
    Same issue found here. I am wandering if this is because of install from windows? And later, I try to re-install from wubi after wipe out, it still shows same error.
    Seeing as wubi was discontinued around the time of Ubuntu 13.04 i'd say you'd be better off to skip wubi entirely.
    "Ah, for the days when a commanding officer could dump a useless minion out the airlock without having to worry about filling in forms..." ―Captain Gilad Pellaeon

  5. #5
    Join Date
    Apr 2014
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    1

    Lightbulb Re: "Serious errors were found while checking the disk for /" after upgrading to 14.0

    Quote Originally Posted by Vitor_Coimbra View Post
    To anybody who wants to at least save their data, I was able to get into Ubuntu by holding the Shift key during boot. After choosing Advanced Options, I chose an older kernel version (3.11) and was able to access my things.

    My stuff is now safe in my flash drive in case this is never solved or the only solution is reinstalling.
    There is one more thing that seems to work. Apparently you can manually edit your GRUB file like this:

    Note: I am not a Linux expert and I would appreciate if someone more knowledgeable could weigh in and confirm this is a safe temporary solution. Also, here is the source -- all credit goes to the guys that figured this out.


    Code:
    gksudo gedit /boot/grub/grub.cfg
    Now find the line similar to this (search for the highlighted part):

    Code:
    linux    /boot/vmlinuz-3.13.0-24-generic root=UUID=[bunch-of-numbers] loop=/ubuntu/disks/root.disk ro rootflags=sync  quiet splash
    Change the ro to rw (as in - instead of mounting as read-only, mount for read-write), save and reboot.

    This file is actually auto-generated, but this solution has been working for me for the past few days without any issues (I am also dual-booting with Windows 8 -- no problems there either).

    And one more link that could be of interest -- someone who seems to be experiencing this issue filed an official bug report. There is no response yet, but the bug has been "confirmed" and perhaps there will be some useful information posted here soon.
    Last edited by stefan28; April 25th, 2014 at 03:25 PM.

  6. #6
    Join Date
    Mar 2013
    Location
    Vermont USA
    Beans
    67
    Distro
    Lubuntu 14.04 Trusty Tahr

    Re: "Serious errors were found while checking the disk for /" after upgrading to 14.0

    Thanks! Worked like a charm, with only the caveat being the line needed changing in my particular config file was a bit different than yours.

    Before change of ro to rw mine was....

    Code:
    linux	/boot/vmlinuz-3.13.0-24-generic root=UUID=bunchofhexidec loop=/ubuntu/disks/root.disk ro
    Linux User #558289 - Learning as I go!

  7. #7
    Join Date
    Aug 2010
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    216

    Re: "Serious errors were found while checking the disk for /" after upgrading to 14.0


  8. #8
    Join Date
    Sep 2011
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    5

    Re: "Serious errors were found while checking the disk for /" after upgrading to 14.0

    1.In ubuntu boot manager press e, it will direct you to edit grub file
    2.Find the line below and edit ro(highlighted below and underlined) to rw

    linux /boot/vmlinuz-3.13.0-24-generic root=UUID=bunchofhexidec loop=/ubuntu/disks/root.disk ro

    3.After editing press F10 to enter to desktop
    4. Open terminal by pressing Ctrl+Alt+T then type the following code

    gksudo gedit /boot/grub/grub.cfg

    5. In the file which opens after running above query, find the first line below

    linux /boot/vmlinuz-3.13.0-24-generic root=UUID=[bunch-of-numbers] loop=/ubuntu/disks/root.disk ro rootflags=sync quiet splash

    6. Change ro to rw and save the file
    7. Restart your system
    8. Problem solved

  9. #9
    Join Date
    Aug 2014
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    1

    Re: "Serious errors were found while checking the disk for /" after upgrading to 14.0

    Thanks KumarAseem, i followed your instructions when i encountered the "serious errors" message after an attempted update. i pressed "e" with the Ubuntu option selected from the boot manager window that i got while holding Shift down during the boot. i changed ro to rw and got my kde desktop up by pressing F10. i differed from your editing advice by editing grub.cfg in a normal shell with sudo vi, exiting with wq!. All was then well. I made sure all my backups were in order, then restarted. The restart checked the disk again, but this time completed the boot and opened kde.

    So thanks, but it sure seems like magic to me How could an ro be an error? who needs an rw so they can write to boot files? What triggers the disk check, which takes a long time?

    But no matter, i did the incantations you offered and i am an appreciated supplicant. thank you, thank you

  10. #10
    Join Date
    Sep 2014
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    1

    Re: "Serious errors were found while checking the disk for /" after upgrading to 14.0


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